@kinsdura: You're right! I really need to go back and refresh my HP knowledge. T_T
I think some people inferred that "being able to make a request of the sorting hat" (whether it's: 'I want to be in Gryffindor!' or 'Not Slytherin'!) as a sign of being brave because you're trying to take fate into your own hands instead of letting the Sorting Hat decide for you. (also, it takes courage to ask for things! ... at least, that's the case with me. orz)
And omg, would Nezumi take the role of Sirius? The sorely misunderstood and imprisoned one? XD